Self-propelled machine



Aug. 24, 193 7.

Filed Deo. 28, 1956 4 Sheets-Sheet 1 Q A 6 a 4 WM Nn, @e2/l QQ, 5

Aug. 24, 1937. J. B. Bow-:TT

SELF PROPELLED SPRAYING MACHINE Filed Dec. 28, 1936 4 Sheets-Sheet 2Aug. 24, 193'77. J. B. BOYETT 1 2,090,929

SEL PROPELLED SPRAYING MACHINE Filed Dec. 28, 1936 4 Sheets-Sheet 5 Aug.24,1937.

J. B. BOYETT SELF PROPELLED SPRAYING MACHINE Filed Deo. 28, 1936 4Sheets-Sheet 4 Patented Aug. 24, 1937 UNITED STATES PATENT oFFlcE 15Claims.

'I'his invention relates to a mobile spraying machine designed primarilyfor use for the spraying of plants with any suitable solution forrelieving plants of diseases and noxious insects and the like, but it isto be understood that the machine may be employed in any connection forwhich it is found applicable.

The invention is an improvement upon the machine forming the subject ofLetters Patent 2,022,584 granted to me November 26, 1935. 'Ihe inventionnot only embodies the objects and advantages set forth by the patentaforesaid, but has for a further object to provide, in a manner ashereinafter set forth a spraying machine of 'i the self propelled type.

A further object of the invention is to provide, in a manner ashereinafter set forth, a spraying machine carrying means for operating atransmission to drive an operating structure common to an agitator, anoscillatory pump and a transmission for a rotatable axle carrying a pairof traction wheels mounted for differential drive.

A further object of the invention is to provide, in a manner ashereinafter set forth, a machine for the purpose referred to including avalve controlled spraying solution discharge pipe common to a pluralityof solution conducting lines leading to spray elements.

A further object of the invention is to provide, in a manner ashereinafter set forth, a machine for the purpose referred to including ahorizontally revoluble structure common to and provid'- ing for theoscillating of an oscillatory pump, the revolving of an agitating meansand the operation of a transmission for propelling the machine.

A further object of the invention is to provide, in a manner ashereinafter set forth, a machine of the class referred to including ahorizontally revoluble operating structure for and common to a pump, anagitator and a transmission to provide for the self propelling of thevehicle, a driving means for said structure and means for controllingthe operation of said structure from the driving means.

Further objects of the invention are to in a manner as hereinafter setforth, a self propelled automatically acting spraying machine which issimple in its construction and arrangement of parts, strong, durable,compact, controllable, thoroughly eicient in its use, readily assembledand comparatively inexpensive to manufacture.

With the foregoing and other objects in View, the invention consists ofthe novel construction, combination and arrangement of parts as will beprovide,

more specically referred to and are as illustrated in the accompanyingdrawings, wherein is shown an embodiment of the invention but it is tobe understood that changes, variations and modifications may be resortedto which fall Within the scope of the invention as claimed.

In the drawings:

Figure 1 is a side view partly in elevation and partly in verticalsection of the machine,

Figure 2 is a plan of the machine,

Figure 3 is a fragmentary sectional View on line 3 3, Figure 1,

Figure 4 is a detail section on line ure 3,

Figure 5 is a fragmentary view in section on line 5 5, Figure 2, YFigure 6 is a fragmentary view in rear elevation of the motor anddriving mechanism for the upper transmission,

Figure '7 is an enlarged sectional detail on line 1 1, Figure 5,

Figure 8 is a fragmentary detail in rear elevation of a clutch shaft,

Figure 9 is a fragmentary View in plan and upon an enlarged scale online 9 9, Figure 1,

Figure l0 is a detail in section on line I0 IU, Figure 1, and f Figure11 is a fragmentary view in section on line I I I I, Figure 2.

The apparatus includes a body part in the form of a flatwise disposedrectangular frame I2 including a pair of spaced parallel combinedbracing and supporting members I4, I5 arranged between the transversemedian and rear end of body part I2. The members I4, i 5 are arranged atthe lower face of the body part. The body part alsoincludes a transversebrace member I6 positioned in proximity to the rear endl I'I thereof.The front of body part I2 is indicated at I8. The member IS is in theform of a channel iron. The ends Il, I8 are n the form of channel irons.The channel iron IE is oppositely disposed with respect to the channeliron I'I. AEach side of body part I2 is formed of outer and inner fiatbars I9, 20 respectively disposed on a lengthwise edge and maintained inspaced relation by suitable spacing means at the forward and rear endsof the said bars. The bars of each side provide a space therebetween,indicated at 2|.

'Ihe machine includes a supporting frame 22 arranged forwardly of memberI5 and carried by and extending upwardly from body part I 2. The frame22 includes an I-shaped top disposed horizontally and formed of a pairof spaced parallel end members 23, 24 and a central member 4 4, Fig- 25merging at its ends into the members 23, 24 centrally of these latter.The member 25 between its transverse median and the member 24 is formedwith an enlarged annular part 26 having formed integral therewith adepending sleeve 21 provided intermediate its ends with an axiallyapertured web 28 (Figure l). The lower face of member 23 has ade-reinforcing web 29 extending lengthwise thereof and terminatingadjacent its ends. The member 24 has depending from its lower face areinforcing web 30 `extending lengthwise thereof and terminatingadjacent each of its ends. The member 25 has depending from its lowerface a pair of reinforcing webs 3I, 32. The

web 3| merges into the web 29 and one side of the sleeve 21. The web 32merges into the opposite side of sleeve 21 and into the web 36. Themember 23 adjacent each of its ends is provided with a pair of dependingarms 33, only one of which is shown. The arms 33 are arranged inparallel spaced relation. The member 424 adjacent each of its ends isformed with av pair of depending arms 34 arranged inparallel spacedrelation. The web 29 merges into the inner sides of the arms 33. The web3U merges into the .inner sides of the arms 34. The side faces of thearms 33, 34 are disposed at right angles to the lengthwise edges of themembers 23, 24. The arms 33, 34 are termed supports and extendbetweenthe bars I9, 29 of the sides of the body part I2 and are anchoredtherewith by the holdfast means 34a. The arms 33, 34 are provided forsuspending a horizontally disposed housing 31 and a pair of bearings 38,39. The ends of the housing 31 are open. The bearings 38, 39 areoppositely disposed and extend into the housing 31 from the open ends ofthe latter. The top of housing 31 is formed centrally with an opening 49and an upstanding collar 4I having its inner face flush with the wall ofopening 49.

The bearings 38, 39 are provided at their tops and in proximity to theirouter ends with upstanding apertured oppositely disposed lugs 42, 43respectively rabbeted on their inner faces as at 44 to provide theshoulders 45. The bearings 38, 39 project outwardly from the ends ofhousing 31 and are recessed in their outer ends as at 46. The base ofthe inner faces of the lugs 42, 43 abut against the end edges of thehousing 31. The latter at each end thereof is formed with outwardlydirected endless flange 41 which is fiush with the shoulders 45. Thelugs 42, 43 are termed hangers and the shoulders 45 thereof abut thebottom edges of the bars I9 of the sides of body i part I2. The lugs 42,43 are secured to the bars I9, 29 of the sides of the body part I2 bythe holdfast means 48. The bearings 38, 39 are tubular and the openingsprovided thereby are indicated at 49, 50 respectively.

Extending through the bearings 38, 39 and the housing 31 is a drivenrotatable axle 5I having an enlarged central portion 52 and reduced endportions 53, 54 upon whichare loosely retained the traction wheels 55,58 respectively formed on their inner faces and axially thereof with theclutching members 51, 58 respectively. The clutching members 51, 58 areoppositely disposed and coacting therewith is a pair of oppositelyspring pressed clutching members 59, 66 which are slidably keyed on thereduced portions 53, 54 of the axle 5I. The controlling springs for theclutching members 59, 66 are indicated at 6I, 62 and are interposedbetween the recesses 46 and the clutching members 59, 60 respectively.The manner of mounting the traction wheels 55, 561.

upon the axle 5I provides for a diiferential action. The members 59, 66,when the machine is being propelled forwardly or rearwardly on astraight line of draft will couple the wheels 55., 56 with axle 5Iwhereby said wheels are revolved with the turning of the axle 5I. Incase of turning, when the machine is being propelled, one wheel will beclutched and driven from the axle 5I and the other wheel will revolveloosely on the axle thereby providing a differential action. At thejunction of the reduced portions 53, 54 with the enlarged portion 52 ofaxle 5I, shoulders 63 are formed and interposed between the saidshoulders 63 and the inner ends of the bearings are oppositely disposedbeveled stop collars 64.

Rearwardly of the member 23 of the frame 22 and 'connected to andsupported upon the meinbers I4, I5 is a vertically disposed motor orengine 65 of the internal combustion reciprocating type'having its crankshaft supporting in lateral relation a beveled pinion 36 arranged withina housing 61 positioned to one side of the lower portion of the motor 65and supported upon the members I4, I5 as well as extended laterally fromone of the sides of the body portion. i8. The housing includes an upperand a lower section indicated at 68, 69 respectively. The section 69 iscentrally apertured as at 10 and formed with an upstanding collar 1Iwhich is externally threaded and has its inner face ush with the wall oropening 19. The bottom of section 69 centrally thereof is formed with adepending pocket 12. Arranged within the pocket 12 is a cup 13 havingits upper end provided with an annular flange 14 which seats upon theupper fa'ce of the bottom of the section 69 of housing 61. The bottom 15(Figure '7) of cup 13 has an axial opening 13. The wall of opening 16 isgrooved as at 11 and mounted therein is a packing 18 for the lower endof a vertically disposed transmission shaft 19 which has splinedtherewith the hub 89 of a horizontally disposed crown gear 8'I of thebeveled type and which is engaged by and driven from the pinion 66.Arranged within the cup 13 is a roller bearing structure 82 of the conetypo for the lower portion of the shaft 19. A spacer ring 83 is mountedon shaft 19 between hub 80 and the bearing structure 82.

Arranged within and supported from the edge olf collar 1I is a cup 84formed at its upper end with a laterally directed flange 85 which seatsupon the top edge of collar 1 I. The bottom 86 of cup 84 is formed withan axial opening 81 for the passage of shaft 19. The wall of opening 81is grooved as at 88 and in said groove is mounted a packing 89 for theshaft 19. Mounted in the cup 84 and supported upon an annulus 96 is a`roller bearing structure 9I of the cone type and which is oppositelydisposed with respect to the bearing structure 82 mounted in cup 13.Carried by the shaft 19 is a spacer ring 92 positioned in the cup 84 andarranged over the bearing structure 9I.

Extending upwardly from and connected to the top section 68 of thehousing 61 is a tubular column 93 having a lower portion 94 of 'enlargeddiameter with respect to its intermediate portion 95. The upper portionof column 93, indicated at 96 is of enlarged diameter with respect tothe intermediate portion 95. The junction of the portion 94 with thelower portion of the portion 95 of the column 93 providesl an annulusshoulder 91 which is seated on the flange 14 of the cup 13. The portion94 is formed with internal threads which engage with the threads of theCil v connected one end of a rock shaft |00.

collar 1| whereby column 93 and housing 61 are secured together and withthe column supported from the cup 13. The junction of the portion 95with the portion 96 of column 93 provides the latter with a shoulder 98.Mounted in an-d supported by the portion 96 of column 93 is a flangedcup 99 carrying a roller bearing structure |00. The shaft 19 extendsthrough column 93, through bearing structure and beyond the upper end ofportion 96 of column 93.

Mounted on that portion of the shaft 19 which extends above portion 96of column 93 is a clutching means |0| formed of a lower section |02 andan upper section |03. The section |02 is slidably connected to the shaft19. The section |03 is loosely mounted on shaft 19 and is adapted to becoupled by section |02 to shaft 19 to provide for sections |02, |03rotating in unison. The clutching means |0| may be of any suitable formbut the forni illustrated is of the frictional type. Fixed to thesection |03 is a grooved pulley |04 which is loosely mounted on shaft 19and is connected to the latter so as to rotate therewith when theclutching means is active. The section |02 of the clutching means isadapted to frictionally engage with the inner face of the clutchingsection |03 when the clutching means is in active position. The pulley|04 is held on shaft 19 by any suitable means as indicated at |05.Clutching section |02 is formed intermediate its ends with a peripheralannular groove |06 and slidably mounted in the groove |06 is a shiftingyoke |91 for the section |02. The yoke |01 is provided at its base witha stem |03 to which is That end of the rock shaft |09 which is connectedto the stem |08 is mounted in an upstanding pair of brackets |10 whichis iixedly secured to the column 93. The latter is braced and securedwith the upper end of the motor 65 by an inclined brace member anchoredto column 93 andv motor 65 by the holdfast device ||2. The shaft |09extends rearwardly and is mounted in a bearing ||3 carried by a combinedbracing and coupling bar H4 which is arranged between the up- ,f bracingmeans H9 are secured at their upper ends to the bars l i5, S and attheir lower ends to the rear of the body part |2. Bracing means |20 aresecured in the same manner as the bracing means H9.

Mounted upon the supporting frame 22 is a vertically disposed tank |2|for the spraying solution. The bottom |22 of tank |2| is formedeccentrically thereof with an opening |23. Arranged within the tank |2|is a vertically disposed tubular member |24 constituting a bearing for avertically disposed transmission shaft |25. The member |24 in proximityto its lower end is enlarged as at |26 to provide a spacing means for atubular shaft |21. The enlarged portion |26 of shaft |25 forms ashoulder |28 which seats on the bottom |22 of tank |2I. The lower end ofmember |24 extends downwardly through the opening |23 into the sleeve21. The shaft |25 extends through the member |24, sleeve 21, web 28 andinto the housing 31.

Mounted o'n the collar 4| and extending therein, as well as encompassingthe sleeve 21 is a flanged bushing |29 (Figure 3). The shaft |25 carriesa stop collar |30 arranged within the sleeve |21. A dust washer I 3| ispositioned in sleeve 21. A roller bearing structure |32 is arrangedwithin sleeve 21. The shaft |25 depends from the bearing structure |32.Arrange-d within sleeve 21 is a dust washer |33. The lower end of sleeve21 is closed by an axially apertured plate |34. That end of the shafty|25 which extends into the housing 31 is provided with a beveled pinion|35 which meshes with a beveled gear |36 carried by the axle 5|. On theoperation of the shaft |25 the axle 5| will be operated and tractionimparted to the machine. The means for operating the shaft |25 will bepresently referred to.

The tank |21 includes a top |31 formed with an opening |38 closed by aflanged cap piece |39 provided with an axial opening |40. The shaft |21extends downwardly through the opening |40. 'I'he shaft |25 is ofgreater length than and extends above the upper end of shaft |21. Thelatter terminates above the bottom |22 of tank |2| and revolves aboutthe portion |26 of the member |24.

Mounted upon the top |31 of tank |2| is a substantially I-shaped topframe |4| having its end arms or members |42 projecting laterally fromthe top |31. The arms |42 are aperture@L in proximity to their ends.Extending through the apertures 35, 36 of the members 23, 24 areupstanding tie rods |43 which pass through the openings of the arms |42and carry on their upper ends clamping nuts |44. The members 23, 24,arms |42, tie rods |43 and nuts |44 are provided for clamping the tank|2| to the supporting frame 22, the latter being anchored to the bodypart I2.

The central arm |45 of the top frame |4| is formed with an annularportion |46 in which is suspended a flanged cup |41 carrying a bearingstructure |48.

The machine includes an operating structure which is common to anoscillatory pump |49 and the shafts |25 and |21. Said operatingstructure includes a pulley wheel |50 of greater diameter than pulley|04 which carries eccentrically thereof an upstanding pin |5|. Thepulley |50 is driven from the pulley |04 by the endless belt |5|constituting an upper transmission. The hub- |52 of pulley |50 carries adisc |53 which is revolubly mounted on the cup |41. Integral with thedisc 53 is a depending annular stub shaft surrounded by the bearingstructure |48.` Stub shaft |54 is integral with the upper end of shaft|21. The upper end of shaft |25 extends into stub shaft |54- and isxedly secured thereto. The cup |41 has an opening for the downwardpassage of the shaft |21. The latter forms the shaft of an agitatingmeans for the solution. 'Ihe agitating means is arranged in tank |2| andnot only includes the shaft |21 but also superposed sets of agitatingblades |55 carried by shaft |21. One set of blades is arranged inproximity to the bottom of tank i2 I.

Secured to the upper end of the body of tank |2| is a socket formingmember |56 carrying a pin |51 which is connected to the pump |49. Thepins |5| and |51 correspond to the elements |41 and |54 of the patentaforesaid. The pump |49 is a reciprocatory oscillatory pump of the sameform and construction as shown inthe patent aforesaid. Itis thoughtunnecessary to specifically describe and show the construction of thepump |49 t 75 because it is mounted and constructed similar to the pumpas disclosed by the patent aforesaid. The air chamber forming element|58 of pump |49 and which corresponds tothe element |02 disclosed by thepatent aforesaid is not provided with a pair of openings for oppositelyextending spraying solution conducting lines as element |20 ofsaidpatent, but in ,lieu thereof the chamber I 58 is provided with asingle opening having a valve controlled solution conducting-off pipe|59 which opens into a T-coupler |80 to which the oppositely extendingsolution conducting lines |6|, |62 are attached. The chamber |58 hasextending therefrom a solution return means |63 which is for the samepurpose and is of the same construction as thesolution return meansdisclosed by the patent aforesaid.

The pump 49 includes .a valve controlled suction pipe structure |64which is of the same form and arrangement as the suction pipeconstruction disclosed by the patent aforesaid.

The top |31 of the tank |2il is provided with a lling opening structure|65 of the same form and arrangement .as the lling opening structuredisclosed by Figure 8 of the patent aforesaid.

Secured between the brace member I and the rear end |1 of the body partI2 is a bearing block |56 to which visswivelly connected the upper endof a hanger |61 carrying a rear supporting Wheel |68 of less diameterthan the traction wheels. The block |66 is disposed on the longitudinalmedian of the body part l2.

The top |31 and the body of tank |2| have formed integral therewithmeans 69 to provide a sleeve through which the suction pipe structure|84 extends and arranged within said means is a resilient aperturedmember through which the suction pipe extends. The means |69 and member|19 are for the same purpose and are of the same construction as theelements 95 and 95a of the patent aforesaid.

The pump |48 is oscillated and reciprocated from the `pulley |50, theoscilla-tory movement being simultaneously with the reciprocatorymovement. The operation of the `pump is had simultaneously with thetravel of the vehicle. The operation of the pump is also hadsimultaneously with the operation of the shaft |21. The propelling ofthe vehicle and the simultaneous operation therewith of the agitatingmeans and the plump is controlled by the clutch lill.

The pump |49 functions in the same manner as the pump structure 99disposed by the patent aforesaid.

What I claim is:

l` In a self-propelled spraying machine, a` body part, a motor on thelatter, a rear supporting Wheel for said body part, a driven tractionstructure suspended from said body part, a vertically disposed fronttransmission shaft, the lower end of said shaft and said structurebetween its sides having coacting interengaging means for propellingsaid structure on the operation of said shaft, driving means for and xedto the Lipper end of said shaft, a vertically disposed rear transmissionshaft located adjacent to the motor, a driving connection for the rearshaft leading from the motor to the lower end of such shaft, and acontrollable transmission means between the upper end of the rear shaftand the driving means for the front shaft.

2. In a spraying machine of that type including a body part and asolution-carrying tank clamped upon said body part, the combination of amotor mounted on vthe body part, Va driven tractionstructure suspendedfrom the body part below .the tank and including wheels and meanscoacting with the wheels to provide a differential action for saidstructure, an upstanding front transmission means extending through thetank and body part, the lower end of said transmission means and saidstructure between the wheels thereof having coacting interengaging partsfor propelling said structure on the operation of said means, anupstanding rear transmission means on said body part located adjacentthe motor, a driving connection for the rear transmission leading fromthe motor to the lower end of such transmission, `and a controllabletransmission means for said front transmission means arranged at theupper ends of the said front and rear transmission means and driven fromthe latter.

3. In a spraying machine, a rectangular skeleton body part, a supportingframe secured to the sides of and extended upwardly from said body part,a spraying solution-carrying tank mounted on and clamped to said frame,a driven rotatable axle suspended from said body part, a pair oftraction wheels loosely mounted on said axle and each having its innerside provided with a clutching member encompassing the axle, a pair ofoppositely disposed spring controlled clutching members slidably mountedon the axle and coacting with the clutching members on said wheels fornormally clutching' the wheels to said axle, a vertically disposedrotatable element extending through, sealed to, extending above anddepending from said tank, the lower end of said element and said axleintermediate its ends having coacting interengaging mgeans for rotatingthe axle on the rotation of said4 element, a motor-on'said body partadjacent said frame, and upstanding `means driven from the motor andconnected to the upper end of said element for rotating the latter.

4. In a spraying machine, a spraying solutioncarrying tank, anupstanding agitating means depending into said tank, an upstanding fronttransmission shaft extending through said agitating means and tank, ahorizontally disposed oscillatory-reciprocatory pump arranged over andcommunicating with the tank for discharging the -solution from thelatter, a horizontally revoluble driving structure common to said means,shaft and pump secured to the upper end of said means and shaft andconnected with the inner end of the pump, an upstanding reartransmission shaft adjacent the tank, a controllable driving connectionbetween the upper end of said rear shaft and said structure, a motoradjacent said tank and operatively connected with the lower end of saidrear shaft for driving it, supporting means common to the tank, mLotor,and rear shaft, and mobile means suspended from said supporting meansand driven from the lower end of saidfront shaft for propelling themachine simultaneously with the operation of the said agitating means,shafts and pump.

5. In a self-propelled self-operated spraying machine, a body part, asolution-carrying tank on said body part, a motor on said body partadjacent the tank, a driven solution agitating means within said tank, adriven shaft extending through said means, a driven pump for dischargingthe solution from the tank, a driven traction structure suspended fromsaid body part, a driving structure common to said means, pump and shaftstructure, said shaft having its lower end provided with a drivingconnection for said structure, and a -controllable upstanding operativedrive connection for and connected at its upper end to said drivingstructure, the said upstanding operative drive connection being operatedat its lower end from said motor.

6. In a self-propelled self-operated spraying machine, a body part, adriven traction structure therefor, an upstanding housing means on saidbody part, a motor adjacent to means, an upstanding rear shaft operatedfrom the motor and encompassed by and extended from the upper end ofsaid means, superposed bearings structure for said shaft supported bysaid means, a spraying solution-carrying tank on said body part,agitating means extending into said tank, an upstanding front shaftextending through said agitating means and operatively connected to saidtraction structure for driving the latter, a pump communicating withsaid tank for discharging the solution, a driving structure common tosaid agitating means, front shaft and pump, and a controllabletransmission connected to the upper end of the rear shaft and leading tosaid driving structure, the latter being aranged at the upper end ofsaid agitating means and front shaft and below an end of the pump.

7. In a self-propelled self-operated spraying machine, a body part, amotor supported thereby, a. controllable transmission mechanism operatedfrom the motor, supported by and extending upwardly from said body part,a driven traction structure depending from said bodypart, asolution-carrying tank on said body part adjacent the motor, a pumpcommunicable with the tank for discharging the solution, an agitatingmeans extending into the tank, and a driving mechanism common to saidagitating means, pump and traction structure, said driving mechanismbeing operatively connected to and operated from the upper end of saidtransmission mechanism, said driving mechanism, being arranged over thetank and including a rotatable part extending through the means to thetraction structure.

8. In a self-propelled self-operated spraying machine, a body part, amotor supported thereby, a controllable transmission mechanism operatedfrom the motor, supported by and extending upwardly from said body part,a driven traction structure depending from said bodypart, asolution-carrying tank on said body part adjacent the motor, a pumpcommunicable with the tank for discharging the solution, an agitatingmeans extending into the tank, a driving mechanism common to saidagitating means, pump and traction structure, said driving mechanismbeing operatively connected to and operated from the upper end of saidtransmission mechanism, said driving mechanism being arranged over thetank and including a rotatable part extending through the means to thetraction structure, a return pipe leading from the pump to the tank, avalve-controlled fluid outlet pipe connected to the pump, and a couplingattached to said pipe for connecting with the latter solution conductinglines.

9. In a self-propelled spraying machine of that type including anoperable spraying structure, a propelling means for the machine and anoperating means common to said structure and propelling means, thecombination of a motor, a housing adjacent the motor, a tubular columnfixed at the lower end to the housing, a vertically disposed drivenshaft arranged Within, extended upwardly from and depending from thecolumn into said housing, bracing means for said column vextended from.the motor, driving means for said shaft within the housing, an operativedrive connection for said driving means operated from the motor, and acontrollable power transmission leading from the upper end of the shaftto the said common operating means.

10. In a self-propelled spraying machine of that type including anoperable spraying structure, a propelling means for the machine and anoperating means common to said structure and propelling means, thecombination of a motor, a housing adjacent the motor, a tubular columnfixed at the lower end to the housing, a vertically disposed drivenshaft arranged within, extended upwardly from and depending from thevcolumn into said housing, bracing means for said column extended fromthe motor, driving means for said shaft within the housing, an operativedrive connection for said driving means operated from the motor,alcontrollable power transmission leading from the upper end of theshaft to the said common operating means, and superposed bearingstructures for said shaft.

11. In a self-propelled spraying machine, an operable spraying solutionstructure, a propelling means for the machine, an operating means commonto said structure and propelling means, said common operating meansconsisting of a pulley interposed in said structure in proximity to itstop, said common operating means being connected with said structure andpropelling means, a motor fixed to the machine, an upstanding drivemechanism driven from and having its lower portion connected with themotor, a controllable power transmitting means leading from the upperend of said mechanism to said common operating means` for driving thelatter, and a contro-lling means for the power transmitting means.

12. In a self-propelled spraying machine, an operable spraying solutionstructure, a propelling means for the machine, an operating means commonto said structure and propelling means, said common operating meansconsisting of a pulley interposed in said structure in proximity to itstop, said common operating means being connected with said structure andpropelling means, a motor xed to the machine, an upstanding drivemechanism driven from and having its lower portion connected with themotor, a controllable power transmitting means leading from the upperend of said mechanism to said common operating means for driving thelatter, a controlling means for the power transmitting means, and abracing means for said power transmitting means extended from saidmotor.

13. In a self-propelled spraying machine, a body part, a mobilestructure suspended from said body part, upstanding supporting means onsaid body part, a vertically disposed spraying solution tank, means forclamping the tank on said means, an agitating means Within the tank, afront shaft extending through said agitating means, tank and supportingmeans, a pump over and communicating with the tank, a pulleyconstituting a common operating means for the pump, shaft and agitatingmeans, said operating means being connected to the pump and suspendingsaid agitating means and shaft, said structure and shaft having coactinginterengaging parts for propelling said structure on the operation ofsaid shaft, a motor on said body part, an upstanding drive mechanismdriven from and having its lower portion connected with said motor, acontrollable power transmitting means leading from the upper end of saidmechanism to said common operating means, and a controlling means forsaid power transmitting means.

14. In a spraying machine of that type including a propelling means andan operable spraying structure, the combination of a pulley constitutinga common operating means for said structure and propelling means, avertically disposed driven shaft, a motor, a driving connection leadingfrom the motor for said shaft, superposed bearing structures for saidshaft, a controllable driving connection for said common operating meansleading to the latter from the upper end of said shaft, and acontrolling means for said controllable driving connection.

15. In a self-propelled, self operated spraying machine, a body part, anormally inactive mobile structure suspended from said body part, anoperable spraying structure on said body part including a tank for thespraying solution, a pump communicating with the tank and an agitatorWithin the tank, rotatable means extending through said agitator andengaging with said mobile structure for propelling it when rotated, adriven pulley suspending said agitator and rotatable means and connectedto the pump and constituting a common driving means for the agitator,pump and rotatable means, a motor, an upstanding structure including avertically disposed rotatable shaft driven from the motor, acontrollable power transmission on the upper end of the shaft andleading from the latter to the pulley for driving` the latter, and acontrolling means for said controllable transmission.

JESSE B. BOYETT.

